According to the appliccation page you looked one up for your car, which would be reverse rotation. So your spinning it the wrong way. You will need a different timing cover and older pump to make it standard rotation.

 

Nice looking engine!

Is there a reason why we should go to a reverse rotation water pump? I am just asking, because I have no idea.

 

our cars came with reverse rotation pumps ...helped facilitate serpentine belt routing...and as far as o/p`s post that pump you bought is a reverse rotation ...it IS a reverse rotation pump...so you ARE spinning it backwards...
this one is a standard rotation pump ...the opposite of what you bought ...http://store.summitracing.com/partd...4908331+4294840126+4294903574+4294903575+4294925024+4294845981+115&autoview=sku

heres the application usage chart from your link.....

Model MUSTANG
Submodel LX & GT
Beginning Year 1986
Ending Year 1993
Engine Type V8
CID 302
Liter 5.0
Engine Size 5.0L/302
Engine Family Ford small block Windsor


and heres the application usage chart for the one I found for you..
Make FORD Brand: Tuff Stuff
Product Line: Tuff Stuff Supercool Water Pumps
Part Type: Water Pumps, Mechanical
Part Number: TFF-1625NA
Pump Flow: High-volume
Pump Material: Aluminum
Pump Finish: Chrome
Rotation: Standard
Quantity: Sold individually.

Ford water pump 5.0L 79-85 chrome SuperCool

 

looks to me like you're correct with the water pump, my dad has a standard rotation on his 1992 timing cover, with the same water pump that you have. i guess trying the thermostat would be a good idea. those things are "temperamental" you know. lol. i'd at least pop it out for a heat cycle just to see. good luck.

 

If it is the same pump then it is not a standard rotation. I notice you wrote standard FLOW. You can get some pumps that are higher flow rates. Maybe he has a stock pump. How is his belt routed? If the belt makes an S between the pump and crank it is a reverse pump. The thermostate wont change anything. the pump is still spinning backwards and cant push water that way.

 

i think eveyone should get the picture on this, what he is saying is he "does not" have a reverse rotation. sorry about that. my dad has the same setup on a 427W and it works perfect on his 1992 timing cover, i was just trying to think of the easiest way to check, like removing the thermostat, usually the cheapest and easiest thing to do. just chill dude.

 

i dunno if you guys noticed but in the link the thread starter posted it says rotation is standard


but hopefully you get it worked out cause i was gonna do the same thing you did

 

im not following you guys. the pump that i bought, when you look at the page, says that it is a standard rotation. my friend just did the exact same thing, only he used a 1985 crown vic pump. i am pretty sure the one i have is a standard rotation, ill call summit tech and make sure right now. but, assuming my pump is standard rotation, what else could be causing this? these windsors are notorious for holding air pockets, but ive burped this thing before and never had this issue, can you burp it through one of the a/c lines that go off the pump? (there is no a/c on my car)

i should just take the t-stat out and see what happens but i wanna eliminate any other possibilities before i go buy more coolant lol

 

it does say its a "standard rotation pump", but the application is for an 87-93 5 liter mustang. and standard rotation for that application is a reverse rotation water pump. you bought a new style pump. you are spinning it backwards like everyone else is telling you. you need another pump.

 

the part says: ROTATION: STANDARD

how can that be wrong?

 

because the application for the water pump is an 87-93 mustang. and in that application standard rotation = reverse because its for serpentine belt routing. you needed to buy a water pump for an older application 302.

 

the pump you have is part# 125-1560P is standard flow which = clockwise flow, the pump with part #125-1560 has counterclockwise flow. you may want to see which way yours is turning to see if you have the right pump. good luck.

 

I dunno what to say...it says standard rotation ...but when you look at the application it shows the 86-93 mustangs which are reverse rotation..catalog error ...maybe ! thats all I was basing my statements from

 

yeah, i searched the catalog also and thought the same thing. maybe they should be a little more specific, because the word "standard" covers a lot of bases. when someone finds out let me know. thanks and good luck.

 

Call Summit and ask them. I just did this last night with a reverse rotation.(stock rotation for 87-93) Im having same issue with over heating, but I changed out radiator and im getting overheating and burbing too. grrr. let me know how it works out.

 

Thats a reverse rotation pump and with the belt routed that way it is spinning backwards(wrong).dont ask me how i know.

 

Its a catalog miss print Sam, the pump you bought is a reverse rotation(counter clockwise). If you look at part#125-1560(no P) the standard flow version of the pump you bought it says counter clockwise...damn them.

 

I would think this would be the one you want ....http://store.summitracing.com/partdetail.asp?part=GMB-125-1230&view=32&N=700+401102+4294908331

 

aside from all of that, your motor looks pretty sweet. good luck.

 

Order a wp for a 90 crown vic and it will the a normal "standard" rotation pump. I did a ton of reasearch before I bought mine and I got a WP641 pump off ebay for dirt cheap and mine never goes over 190.

 

so its supposed to be clockwise or counter clockwise just wondering? if your looking at the motor or facing the direction of the car?

 

its supposed to buy clockwise... buy this..

http://store.summitracing.com/partdetail.asp?autofilter=1&part=EDL-8843&N=700+115&autoview=sku


and this

http://store.summitracing.com/partdetail.asp?autofilter=1&part=MCH-2004&N=700+115&autoview=sku

it is exactly what im using on my 347 and you will have no problems..


also with that bracket (i have the same one) you can flip the alternator over, so its low mount, put the adjustment rod on the bottom and clean up the engine bay even further.


:salute:

 

its supposed to buy clockwise... buy this..

http://store.summitracing.com/partdetail.asp?autofilter=1&part=EDL-8843&N=700+115&autoview=sku

And, they have a very useful "install directions":
From:
http://store.summitracing.com/instructions.asp?File=edl-8843-48inst.pdf
INSTALLATION
Installation is the same as for original equipment water pumps.
Consult service manual for specific procedures, if necessary.


More importantly:
DESCRIPTION
The Edelbrock aluminum water pump #8833 and #8843 are
heavy duty water pumps for both street and racing applications.
The pumps are direct replacements for the original equipment
pump (Ford #D0OZ-8501-B) to provide compatibility with all
accessories and pulleys. They offer weight savings along with
increased durability and cooling potential. #8833 and #8843 are
standard rotation water pumps for 302 and 351-W engines. Not
for reverse rotation 1986-93 5.0 Litre V8s with serpentine drive
belt. Polished Aluminum Water Pump #8848 fits the same applications
as #8843.


So, that's the water pump you want if you want the water pump to go in the "opposite direction" from the stock 86-93 water pump.

_______
Joe

 

Is it ok to run the smooth wp pulley on the rib side of the belt?

 

i was running mine that way before i bought the ribbed pulley.. it worked fine, i just like things to be 'proper'

 

the way i seems to me is this....the 1560 pump is a standard volume pump and the 1560p is a high volume version of the same reverse rotation pump and the "p" stands for performance because if you look at any of the other clockwise rotation pumps even the gmp brand they don`t have the heavy ribbing on them which is how we used to tell them apart ..I could be wrong but don`t think so ..and a parts jockey on the phone at summit is only going to see the same thing you do on their screen and thats what they go by just likek you did when you bought it ...and I dunno how changing a rack would start causing theses issues doesn`t make any sense .....

 

and then it hit me ..why not check gmb`s website ....
YEAR MODEL O.E. NO. O.E. CASTING STANDARD PERFORMANCE

1993-86 302 (5.0L) (D, E, M) F0ZZ-8501A E9TE8505A4A 125-1560 125-1560P

so theres the proof that your pump is reverse rotation and that the catalog is a misprint the "p" oes only stand for performance (high volume)

 

i agree, the catalog should say reverse flow instead of standard flow. would have saved a lot of headache. like a said earlier, the word "standard" covers a lot of ground. maybe someone should call summit and tell them they should change it. this may be a common problem, you never know. good luck.

 

The 125-1560 and 125-1560p are the same pump, the P just means performance...If you look at 125-1560 in summit its listed as a counterclockwise (reverse rotation) waterpump..soooo pretty much summit is wrong.

 

another way to check, did your stock non ribbed pulley bolt right up to the new waterpump without drilling new holes.. if so its probably a reverse rotation.

all the standard (clockwise) rotation pumps ive seen use a slightly smaller bolt pattern as they are designed for a v belt pulley, not the mustang serp pulley (wich is the reason for the march pulley, it has both patterns drilled into it) or you can just drill the new pattern into your old pulley..


but either way

 

X2